Electrical conductor.



P. GLINGMAN. ELECTRIGAL CONDUCTOR. APPLICATION FILED JUNE 29, 1914.

Patented D8129, 1914.

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P. GLINGMAN. ELECTRICAL CONDUCTOR.

APPLICATION FILED JUNE 29,1014.

PatentedDc. 29, 1914.

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ELECTRICAL CONDUCTOR.

Queens, city of New York, State of New maybesiniilar to that shown at 6 in Fig. 6, York, have invented certain new and useful provided'with a body 6, pierced to receive 'Improvements in Electrical Conductors, of a suspending rod, lugsl', 8, one removable which the following is a specification. and held by'ascrew or bolt 9, which the M v invention relates to electrical conducbody apertured to receive, and another 10 tors and particularly to those which are cur bolt 10 which, holds .the T iron 5, to the ploycd to transmit high potential currents "n iain conductor 2. At this'initial point of such as are muployed in electric train servsuspension, .the T iron is secured with its ice, and it consists primarily, in a gradual-1y bearing face above (or below if an oyerdeflecting approach to a section insulator, runningshoe is used) the level ofthebearalso in a switch for closing the circuit when ing face 'of the conductor'zZ, but so set that that is desired. its bearingface quickly comes to and then Figure L'representS aside view of an ingradually extends below (or above) the sulating break in a trolley wire,'provided level of said bearing face of the main conwith parts of approaches embodying my inductor, so that, at the break and Where the vention. Fig. :2, shows a further portion of .irons project pasteach other, their bearing such an approach and of the main conducfaces are considerably below (or above) the tor. Fig. 3, is a plan view ofthe device level of the bearing'face of' the main con- (though notto scale), parts being omitted ductors l, 2, as plainly seen in Fig. 1, that to more clearly exhibit the remainder. Fig. is theyare between the bearing face of the l, is a side view of the insulator for supmain conductor andthetrack on which the porting the switch, the. insulator support vehicle is intended to run,'if thebearing and the key of the switch. Fig. 5, is a top faceof the main conductor is on the side .view of the said support for the switchldetowardithe track, but if the said bearing vices. Fig. (5, is a vertical cross-sectional face of the main conductor ison the oppoview of the clamp or clip I sometimes einsite side to that-toward the track, as it would ploy to support the trolley wire or main bewith an over-sin fiingshoe, then the bearv conductor and to connect it and theT iron ing faces of the-T ironapproaches Where which 1 prefer to employ for the approach. they overlap, would, be farther from the In highitension .wo'rk, 'it is usualto break track than the bearing face of the main conthe conductor 1, 2, into sections and to 'conductor. In either case it is farther from the nect. the sections, plrvsically, by. aivooden center or axis ofthat main conductor, in a Specification of Letters Patent.

Application filed June 29, 1914. Serial No. 847,912.

To (1. HilO/IL itma concern Be it known that I, PALMER C-LINGMAN, a citizen of thel nited States of America,

residing at llroa'dway, in the county of.

i-nsulatoril, about (3 feet long. i With a trolley system thus constructed, there is a physical shock attendant upon the engaging of thenio ving pantograph shoe with the inflexible insulator. To avoid this shock, I

have devised the 'ap -oach, one embodiment of which is here shown.

preferably, two long First I provide, light T irons though I do not limit myself to T irons). *The ends of the T irons l, 5, which projectone past the other, I form with a gradual curve, opposite the wooden insulator These irons may be about 30 feet long, though I do not limit myself to any specific I preferto have them long enough to project Well past each'ot'her and to reach back to points on the main conductor sufficiently d stant from the insulator connect on to in,-

sure that the conductor, at that point, shall yield easily to the flexing attendant upon dimensions, but' permit the T ironsto ily, underthe stress" of the pressure of the the pressure of the pant'ograph shoe against it as thecar proceeds.

The hanger for supporting the conductor and the T iron at the point of connection,

within the space which would lie between that hearing face of the main conductor and the bearing faceof theshoe/when it had run up (or down) on the bearing face of the iron approach. 1

Themain conductors and consequently the T irons also, are usually suspended from a, so-called messenger wire 11, by means of -han, 1ei" rods '12, 14, etc., and there maybe as "many of these as are desired. I also sometimes provide supplemental hanger rods, 15, etc., for suspendingthe T irons, all of such rods being' so connected as to lift slightly, but read- Patented Dec.'29, 1914.

4 nothing to prevent,

pantograph shoe. I also preferably pro.- vide stiff springs 16 17 secured to the insulator fixtures or connections 18, 19, to aid in supporting the T irons, and these springs and the T irons themselves are deflected, one to the left and the other to the right, so that at the line where they project one (4) past the other (5) they shall be well separated, for high potentials about 18 inches. Supporting rods 20, 21, are provided for connecting the T irons to these spring supports 16, 17 Gravity might be sufiicient to hold the T irons to position, but when very light irons are used I sometimes provide springs 22, 23, secured to the fixtures 18, 19, and to the T irons i, 5, with their stress opposing any movement toward the line of the main conductor, to insure that the T irons shall be held to place.

The shoe of the pantograph is wide enough to touch both T irons 4 and 5, when it reaches the point where they register one with another, but of course it will bear upon only one when approaching the break and upon the other when receding therefrom..

This might tend to tip the device if there were so I connect the rod 14;, 3, or its fixture, and

11, thus providing a sufficient resistance to this tilting ac tion. There may be another such-rod extended from the other end of the insulator or its fixture, to the messenger wire above it. -Since it is sometimes desirable to close the circuit across the break, I provide a switch for that purpose. It consists of a support 24, secured to insulator 3, about 18 inches from the end. In this support, I mount another insulator 27, on a shaft or rod 25, with a polygonal shaped head 26, and from the insulator 2?, (usually porcelain), I extend a switch arm 28, long enough to reach and make contact with a contact post 29, preferably mounted upon the fixture 18. .The shaft 25, is provided with a key 30, adapted to fit into key-ways 31 and 32, formed in the support 24, and from the switch arm 28, I lead a circuit wire 33, back to the main conductor 2. The extra insulator 27, is usually provided to insure that there shall be no short circuiting when main tenance of the break in the circuit is desired. Now if I desire to close the circuit, I raise a rod or pole, provided with a socket wrench,

rigidly to the insulator then to the passenger wire till the socket engages the head 26, press it upward until I raise the key 30 out of the key-way 32, turn it until the key registers with key-way 31,. and then lower it into engagement therewith, the parts having been so proportioned that the arm 28, will then have made contact with the contact post 29.-

The approaches, under any tension, as is the main conductor 1, 2 and the insulator 3, consequently said as will be noted, are not' approaches may yield slightly, but readily and without undue resistance, in response to the pressure of the pantograph shoe. As this moving pantograph shoe approaches the break in the section. it will ride upon the T iron and then off from the main conductor, being gradually separated from that till it reaches and makes contact with the T iron upon the farther side of the break and proceeds along that to the point where the other section of the main conductor lies even with the bearing face of saidsecond approach iron. It will reach the second approach iron before it has broken contact from the first approach iron, consequently the circuit from the moving vehicle to the conductor remains closed during the passage of the pantograph shoe over the space occupied by the insulator 3, but the shock of contact therewith will have been avoided.

What I claim and desire to secure by Lettors-Patent, is

' 1. The combination with an electric conductor and an insulator interposed between sections of the main conductor, of a comparatively rigid conductor connected to one section of the mainconductor, at a point some distance from the insulator and extending, on an easy grade, to a point beyond the nearest end of the insulator, said second conductor being so set that it shall have its bearing face level with the bearing face of the main conductor at a point preceding the proximate end of the section and, at a point succeeding said end of the main conductor section, said bearing face of the second conductor shall be within the line of the bearing face of the main conductor, all substantially as set forth.

2. The combination with an electric conductor and an insulator, interposed between sections of the main conductor. of a pair of comparatively rigid conductors connected to the respective sections of the main conductor at points some distance from the insulator, and extending, on an easy grade, toward each other and to points respectively beyond the "nearest end of the insulator, said second conductors b ing so set that they shall have their hearing faces level with the bearing faces of the main conductor at points respectively preceding the proximate ends of the sections and, at points succeedsections of the main conductor, of a pair of comparatively rigid conductorsconnected to the respective sections of the main conductor at points some distance from the insulator, and extending toward each other, one be 2 of the main conductor section," said bearing face of the second conductor shall be" within yond the line of the other, on an easy grade, from a level other-than that of the bearing face of the main conductor, to, across and beyond the plane of the bearing face of said ftinain conductor and to points resp ectivel be ond the nearest end of the insulator, a 1' su stantially as set forth. I "'5' 4. The combination with an electric. 9911- ductor and an insulator interposed between r1 0 sections of thernain conductor, of a light T ,iron connected to one section of the main" conductor at a point some distance from the insulator and extending, on an easygra'de, to a point beyond the nearest end ofthe in-.

sulator, said'second conductor being so set that it} shall have its bearing face level with the bearing face ofthe main conductor at a.

point preceding the proximate end of the section a nd,'at a point succeeding said end the line ofthebearin face of the main conductor, all substantia 1y as set forth. 5. The. combination with. an. electric con- "215 1 ductor and anzinsulator interposed between sections of the'ma-in conductor, of a com paratively rigid conductor connected'to one section of the main conductor at a point some distance from the insulator and extending, onan easy grade, to a point beyond the nearest end of the insu1ator,- said second conductorbeing so set that it shall have its bearing face level with the bearing face of/ the main conductor at a point preceding the 535 proxiinate'end of the sectionand, at apoint 5 gether-with means, substantially as set forth conductor connected to one section of the main conductor at a point some distance I from the insulator and extending, on an easy grade, to a point beyond the nearestend of the insulator, said second conductor being meet that it shall haveits bearing face level withthe bearing face of the main conductor at aipoint preceding the proximate end of the. section and, at a pointsucceeding said 'end of the main conductor section, said bearing face of the second conductorshall be within the line of the bearing face of themain' conductor, together with a suspending spring and a depressing spring interposed between the said insulator and said second conductor, all substantially as set forth.

7: The cornbination with an electric con- 'ductor and an insulator interposed between sections of sa d main conductor, of a second conductor connected'to one section of the 1113111 conductor at a point some distance from the insulator and extending, on an easy grade, to a point beyond the nearest end of the insulator, said second conductor being so set. thatvit'shall have its bearing the bearing face ofthe main conductor, to-

for holding said second conductor in a given vertical plane, all substantially as set forth.

In testimony whereof, I have signed my name to this specification in: the presence of :face level with the bearing face of the main a conductor at a point preceding the proximate end of the main conductor section and,. ,at apoint succeeding said end ofthemain ednductor section, said bearing'face of the 7 second conductor shall be within the line of two subscribing-witnesses, this 25" day of June, 1914. a I I v PALMER CLINGM AN."

lVitnesses':

CHARLES S. THORN, OTLTO ABEL, Jr. 

